1·My new car is economical of fuel.
我的新汽车节省燃料[不费油]。
2·My new car is economical of fuel.
我的新汽车节省燃料[ 不费油]。
3·The man is economical of his time.
这人很节约时间。
4·He is economical of money.
他节省金钱缮。
5·He is economical of money and time.
他既节约时间又节约钱。
6·You should be more economical of your energy.
你应该多多节省你的精力。
7·The new engine is claimed to be most economical of all its predecessors.
据认为这种新的发动机是同类发动机中最经济的。
8·With the watch, you may be economical of your time. And then you will have the best achievements on the day.
有了表，你可以经济地使用你的时间，而且在那天会有最好的成就。
9·The proposed method does not involve power interruption and is economical of transformation time and expenses.
应用该方法不需要停电施工，改造时间短，改造费用低。
10·These durable and most economical of the E M &S line of motors are ideal for many applications where long life and dependability are required.
这些坚固和经济的产品非常适合在需要长使用寿命和高可靠性的应用。